Seattle, US

Hotel highs: The downtown Westin Seattle has 44 floors and is 136 metres high, offering views of the Space Needle, the Cascade Mountains, Puget Sound and the rest of the city from its two cylindrical towers.

Did you know? There have been six parachute jumps from the Space Needle since it opened in 1962: two of which were unauthorized, while four were part of a promotional campaign.